Electroerosion printing plates

An electroerosion recording medium comprising:

• a substrate;
• a cross-linked polymeric layer disposed on said substrate;
• and
• a conductive, erodible metallic layer disposed on said polymeric layer, said metallic layer being sufficiently thin to be eroded when subjected to current pulses from recording styli during electroerosion recording;
• wherein said cross-linked polymeric layer comprises 20-50% polyvinylbutyral crosslinked with 10-30% of a mixed phenol-tert-butylphenol formaldehyde cross-linking agent, and 10-50% pigment.

An electroerosion recording medium comprising:

• a substrate formed from polyethylene terephthalate;
• a cross-linked polymeric layer disposed on said substrate;
• and
• a conductive, erodible aluminum layer disposed on said polymeric layer, said aluminum layer being sufficiently thin to be eroded when subjected to current pulses from recording styli during electroerosion recording, and having an optical density between 2.5 and 3.5;
• wherein said cross-linked polymeric layer comprises 20-50% polyvinylbutyral crosslinked with 10-30% of a mixed phenol-tert-butylphenol formaldehyde cross-linking agent, and 10-50% silica pigment.